Small Molecule Azaacene as an Anode Material for Lithium-Ion Batteries
Bibliographic record
Abstract
In recent years, organic electrodes have attracted much attention owing to their unique properties including low density, flexibility, and in certain cases ultra-high capacity. In this contribution, we report the synthesis of a novel small molecule azaacene (SmAz) and reveal its electrochemical performance as an anode material in Li-ion batteries. SmAz delivers a reversible capacity of around 550 mA h g –1 at 50 mA g –1, a value that exceeds its theoretical capacity (237 mA h g –1 ). Moreover, SmAz displays an activation process in which the capacity increases with cycle time. Operando XRD suggests SmAz becomes amorphous during cycling. Greater insight into the charge storage mechanism is revealed with impedance and cyclic voltammetry and suggests the organic anode is controlled by a mixture of ion-diffusion and pseudocapacitive processes. Overall, these results reveal a new mechanistic understanding of the electrochemical behaviour in organic electrodes, as well as design features for their continued development.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".